ECI

ECI may refer to:

Companies

 * ECI Partners, a British private equity group
 * ECI Telecom, an Israeli telecommunication equipment manufacturer
 * El Corte Inglés, a Spanish retailer
 * Engine Components Inc., an American aircraft engine manufacturer
 * Eze Castle Integration, an American IT company

Education

 * Early childhood intervention, a support and educational system for very young children
 * Eastwood Collegiate Institute, in Kitchener, Ontario, Canada
 * Emergency care instructor, a person who provides training in emergency care
 * Etobicoke Collegiate Institute, in Ontario, Canada

Government and politics

 * Election Commission of India, a body established by the Constitution of India
 * European Citizens' Initiative, in the European Union
 * Evangelical Climate Initiative, in the United States

Indexes

 * Economic Complexity Index, an economic indicator
 * Efficiency of conversion, efficiency of food conversion, an index measure of food fuel efficiency in animals
 * Employment cost index, in the United States

Science and technology

 * Earth-centered inertial, a coordinate system
 * Enhanced Cartridge Interface, a computer interface
 * Enterprise content integration, a software technology
 * Extended Channel Interpretation, a communication protocol extension for the bar code reader to host interface
 * European Color Initiative, an expert group
 * E-UTRAN Cell Identity (ECI), an identity for a cell within a network in LTE

Other uses

 * Eastern Congo Initiative, an American development charity
 * Engineering Council of India
 * Evangelical Church of India
 * World Federation of Energy, Chemical and Various Industry Workers' Unions, a former international trade union secretariat